摘要:
To provide an optical recording medium which can maintain excellent recording characteristics and storage reliability even at high recording speeds of 3× to 10× on DVD, particularly at 8× or faster, and whose recording material can be readily initialized to provide a uniform reflectivity distribution. The optical recording medium includes a substrate, first protective layer, recording layer, second protective layer and reflective layer, the first protective layer, recording layer, second protective layer and reflective layer being disposed on the substrate in this order or in reverse order, wherein the recording layer comprises a composition expressed by the Formula (X1)αSbβ(X2)γ where X1 represents at least one element selected from Ga, Ge and In; X2 represents at least one element selected from Au, Ag and Cu; and α, β and γ represent atomic % of their respective elements (where 2≦α≦20, 55≦β≦95, 0
摘要:
The present invention provides a new dispersion stabilizer that satisfies, at a high level, the performances required for a dispersion stabilizer used for suspension polymerization. A method of producing a dispersion stabilizer that is useable for suspension polymerization of a vinyl compound and contains a vinyl alcohol polymer (A) includes producing the vinyl alcohol polymer (A) by heat-treating a vinyl alcohol polymer (B) at a temperature of 90 to 180° C. for 0.5 to 20 hours in an atmosphere in which an oxygen concentration is 8000 ppm or lower. The vinyl alcohol polymer (B) has a saponification degree of at least 60 mol % and contains a residual acetic acid group whose block character is in the range of 0.3 to 0.6.
摘要:
An exposure apparatus includes a plurality of projection optical systems and a substrate stage. Each of the plurality of projection optical systems forms an exposure field on the substrate. The substrate stage holds the substrate and moves in at least a scanning direction extending in a straight line. The plurality of exposure fields are arranged along a direction crossing the scanning direction. The plurality of projection optical systems and the substrate relatively move during an exposure field forming operation along the scanning direction.
摘要:
The phase-change optical recording medium having a substrate, and at least a first protective layer, a recording layer composed of a phase-change material, a second protective layer and a reflective layer disposed on the substrate in this sequence has a maximum recording linear velocity VH of 20 m/s to 60 m/s, a range of linear velocity recordable even when the recording linear velocity is continuously changed of 0.3VH to 1.0VH, and no occurrence of crystals causing a reproduction error in recorded marks.
摘要翻译:具有基板的至少第一保护层,由相变材料,第二保护层和设置在该基板上的反射层构成的记录层的相变光学记录介质具有最大的记录线性 20m / s至60m / s的速度V H H,即使记录线速度连续地变化到0.3V的时候也能记录的线速度的范围为1.0V 并且不存在引起记录标记中的再现错误的晶体。
摘要:
There is provided a method and a device for recording optical data able to improve recording power setting during recording by means of PWM with a small number of pulses. During the test recording, using a period of a recording channel clock Tw as the minimum unit, marks having different mark lengths of n1·Tw and n2·Tw (n1
摘要:
A stator iron core of an electric motor including plural magnetic pole segments. Each of the pole segments include a back yoke portion, a teeth portion projected from the back yoke portion, a connection portion provided to the back yoke portion for connecting adjacent magnetic pole segments, and a stepped-shaped notch on an outer circumference of the back yoke portion. Further, the stator iron core is circularly formed by bending the connection portions of the plural magnetic pole segments.
摘要:
In an FDD control apparatus for controlling a floppy disk drive for driving a floppy disk loaded in the floppy disk drive, an FDD control part including a floppy disk controller (FDC) is disposed in an FDD side in lieu of a host side (a SET side). The host side (SET side) is loaded with a USB connector connected to the FDD control part. The FDD control part includes a flash ROM for storing a program for adjusting a step timing of a stepping motor.
摘要:
A four-stroke engine with a lubrication system is disclosed. The engine includes intake and exhaust valves. A valve actuating mechanism opens and closes the intake and exhaust valves. The lubrication system includes a baffle plate unit that is located generally above the valve actuating mechanism. The baffle plate unit includes a baffle pate and a lubrication passage. The baffle plate is configured to guide blow-by vapors to a discharge port. The lubrication passage is configured to lubricate the valve actuating mechanism.
摘要:
In an FDD control apparatus for controlling a floppy disk drive for driving a floppy disk loaded in the floppy disk drive, an FDD control part including a floppy disk controller (FDC) is disposed in an FDD side in lieu of a host side (a SET side). The host side (SET side) is loaded with a USB connector connected to the FDD control part. The FDD control part includes a flash ROM for storing a program for adjusting a step timing of a stepping motor.
摘要:
An alignment apparatus for aligning a first object (reticle) with a second object (wafer) when irradiating a projection light on the first object to project a pattern of the first object onto the second object through a projection optical system. The apparatus includes an illumination optical system for illuminating a plurality marks on the second object with an alignment light having a wavelength band different from the projection light, a detection optical system for receiving the alignment light from the illuminated mark through the projection optical system to detect an image of the mark formed by the alignment light, and a compensating optical system arranged within the detection optical system for compensating a chromatic aberration of magnification caused by the projection optical system due to the differences among the wavelengths within the wavelength band of the alignment light.